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SAT MAY 2 3/T/18 Century Prep Ride #10 - Warm-Up Loop From Sports Basement Berkeley 
Leader: Corwin Zechar     (510) 816-2352    text
Leader: Charley Donovan     (415) 990-9241    text
Meet at 1:00 pm
Start Location: Sports Basement, Berkeley
Pre-registration

This is a warm-up ride for the Grizzly Peak Century - the day before the century. There will be a post ride party hosted by our friends at Sports Basement Berkeley from 3 - 5:30pm. Century volunteers are also welcome at the party. And... There will be a food truck outside.

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This tenth ride in the 2026 Century Prep Series leaves from Sports Bsement Berkeley. Climb Tunnel Road to Grizzly Peak Boulevard, turn left and continue to Spruce. Turn left again and descend back to Sports Basement via Spruce, Virginia and Milvia. Members and nonmembers can all pre-register using the link above to save us time at the start.

RideWithGPS route

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

Note: If you are registered for the century, you can pick up your t-shirt at Sports Basement between 3 and 5:30 pm.

SUN MAY 3 5/your pace/30-100 Grizzly Peak Century 
Meet at 6:30 am
Start Location: St. Mary's College

Information and Registration on our century website.

MON MAY 4 3!/T/16 Monday TI Lap (repeats weekly) 
Leader: Zachary Williams     (415) 218-3195    text
Leader: Tony Perez     (510) 334-9105    text
Leader: Steve Winter     (510) 551-5566    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

TUE MAY 5 5/B/32 GPC Tuesday Night Ride - Brisk Group (repeats weekly) 
Leader: Christopher Lee     (510) 773-0551
Leader: Eli Alexander-Tanner     (510) 593-9843    text
Leader: Max Walker     (925) 324-2256    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

TUE MAY 5 5/M/24,32 GPC Tuesday Evening Ride (repeats weekly) 
Leader: Mark Abrahams     (510) 524-1294
Meet at 5:30 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Tue 10:45am. Paul Schmidt will lead the ride today. Check back later today for any possible weather updates.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

TUE MAY 5 5/TM/24 TM Tues Evening (repeats weekly) 
Leader: Nick Umemoto  
Meet at 5:30 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Ride canceled due to no pre-registered riders. Hope to see you on another ride! Thanks

Join us for a friendly TM paced paved ride. We meet at the plaza near the water fountain by Spruce and Grizzly Peak. This is an out and back to Chabot Space and Science Center. We'll head out along Grizzly Peak Blvd or Wildcat and up South Park. Then, take Skyline to the Science Center driveway where we'll climb the road to Chabot Space and Science Center. Brief regroups are at the top of South Park, Grizzly Peak at Skyline, and Chabot Science Center. Please carry enough food and water for the entire ride. Please pre-register by 3:30PM day of ride. Rain, bad AQI, or no riders pre-registering might cancel the ride. E-bikes are welcome on this ride.

The pace is TM (approx. 16mph solo effort on flats, up to 3w/kg climbing)

https://ridewithgps.com/routes/45778398

WED MAY 6 3/T/40 Wed Ride - Deb's Diversion - Marshall Wall Loop 
Leader: Jaz Zaitlin     (510) 393-6602    text
Leader: Debbie Miskell     (415) 488-7300    text
Meet at 10:00 am for a 10:15 am start
GPC Route: Nicasio to Marshall
Start Location: Nicasio
Pre-registration

Our standard Marshall Wall CCW loop from Nicasio. Ride past the Marin Cheese Factory and over the Marshall Wall. Ride the rollers down Highway 1. Return with an optional lunch/snack stop at the Bovine Bakery in Pt. Reyes Station.

The Marshall store is open on Wednesday but only for "shuck your own", not a full menu. Some of us will stop there and eat our own sandwiches. Some will continue on to Pt. Reyes Station for lunch.

WED MAY 6 3/T/21 Wednesday Mixed Terrain T Pace (repeats weekly) 
Leader: Rick Patterson     (510) 978-1786    text
Meet at 6:00 pm for a 6:10 pm start
Start Location: El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

THU MAY 7 3/TM,M/59 Duros West - Loop around Mt Tam 
Leader: Mark Nienberg     (510) 812-9312    text
Meet at 9:30 am
GPC Route: Loop around Mt Tam
Start Location: Piper Park
Pre-registration

From Piper Park (water and rest rooms), we ride the back roads to Fairfax. Then over White Hill to Woodacre, Sam P Taylor, Platform Bridge, and Pt Reyes Station (mile 25) for snacks. Then south to Stinson Beach for lunch (mile 42). Continue south on Hwy 1 to the climb through Muir Woods and the descent into Mill Valley. Final climb over Camino Alto and return to Piper Park via the bike path.

If there is an event at Piper Park and you can't find a spot, park around the corner on Larkspur Plaza Drive. It's uncommon, but it has happened.

This ride sometimes has a faster group (more like M pace) and a regular TM group. The groups come back together at frequent regroups and lunch. Arrive by the meeting time if you don't want to chase.

THU MAY 7 3/TM/26.6 Spruce to Space (repeats weekly) 
Leader: Anne Schonfield     (510) 851-4749    text
Leader: Joel Ager     (510) 418-6462
Leader: Steve Winter     (510) 551-5566    text
Leader: Abigail Cotton     (949) 929-3714    text
Meet at 5:20 pm for a 5:30 pm start
Start Location: North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

THU MAY 7 5/0/17 Thirsty Thursday Mixty (repeats weekly) 
Leader: Mike Wood     (708) 539-9663    text
Leader: Drew U     (510) 290-0615    text
Meet at 5:30 pm for a 5:35 pm start
GPC Route: CCB Mixed Terrain Short
Start Location: Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

SAT MAY 9 4/TM/49 Workers' Century - TM pace + Post-Ride BBQ 
Leader: Alberto Perez     (510) 847-6469    text
Meet at 8:20 am for a 8:30 am start
GPC Route: ASSR - T - Martinez
Start Location: Orinda BART NW corner of parking lot
Pre-registration

*Please note different start time.*

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a TM-paced ride! See more information about this ride on our website.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

SAT MAY 9 4/T/34 Workers' Century - T pace + Post-Ride BBQ 
Leader: Ian Cha     (510) 909-9007    text
Leader: Siu Mak     (510) 229-0090    text
Meet at 9:00 am for a 9:20 am start
GPC Route: ASSR - TM (short) - Classic Andante
Start Location: Orinda BART NW corner of parking lot
Pre-registration

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a T-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website. This is a NO DROP ride.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

SAT MAY 9 4/LT/23 Workers' Century - LT pace + Post-Ride BBQ 
Leader: Mitch Cohen  
Leader: Arash Farzam     (405) 762-6527    text
Meet at 10:00 am for a 10:10 am start
GPC Route: ASSR - LT - Classic Larghetto
Start Location: Orinda BART NW corner of parking lot
Pre-registration
UPDATE:

Please note updated start time! Meet at 10am!

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for an LT-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website. This is a NO DROP ride.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

SAT MAY 9 0/0/0 Workers' Century After Party 
Leader: Richard Amarelo  
Meet at 1:00 pm
Start Location: Orinda Oaks Park

Did you volunteer for the Grizzly Peak Century? Come celebrate the completion of a successful event with your fellow Grizzlies at our after party! Please see previous listings for ride options before the party. Even if you choose not to ride, come and hang out for pizza, cake, and good cheer! Please RSVP here as soon as possible:

https://forms.gle/PRevwdQhW3J7L3Ru7

We are looking forward to celebrating with you!

MON MAY 11 3!/T/16 Monday TI Lap (repeats weekly) 
Leader: Zachary Williams     (415) 218-3195    text
Leader: Tony Perez     (510) 334-9105    text
Leader: Steve Winter     (510) 551-5566    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

TUE MAY 12 5/B/32 GPC Tuesday Night Ride - Brisk Group (repeats weekly) 
Leader: Christopher Lee     (510) 773-0551
Leader: Eli Alexander-Tanner     (510) 593-9843    text
Leader: Max Walker     (925) 324-2256    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

TUE MAY 12 5/M/24,32 GPC Tuesday Evening Ride 
Leader: Paul Schmidt     (925) 408-7645    text
Meet at 5:30 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Paul Schmidt will lead the ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

WED MAY 13 3/T/30 Wed Ride - Pinole-Martinez Loop Clockwise 
Leader: Philippe Henri     (510) 590-1549    text
Meet at 10:00 am for a 10:15 am start
GPC Route: Carquinez Loop Clockwise via Bay Trail
Start Location: Pinole Valley Park
Pre-registration

Our standard clockwise route from Pinole Valley Park along the Bay Trail and the George Miller Trail to lunch in Martinez in the Plaza next to Starbucks on Main St. Return via Pig Farm Hill. Bring lunch or buy in Martinez.

WED MAY 13 3/T/21 Wednesday Mixed Terrain T Pace (repeats weekly) 
Leader: Rick Patterson     (510) 978-1786    text
Meet at 6:00 pm for a 6:10 pm start
Start Location: El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

WED MAY 13 Meeting Virtual Club Meeting (repeats monthly) 
Meet at 6:45 pm for a 7:00 pm start

Join the club's virtual monthly business meeting at 7:00 pm. Optional social time from 6:45 pm to 7:00 pm. Check your email for an announcement with the agenda and details of how to join the meeting.

THU MAY 14 5/TM,M/59-65 Duros West - Marinwood to Mt Tam 
Leader: Mark Nienberg     (510) 812-9312    text
Meet at 9:30 am
Start Location: San Rafael - Marinwood Community Center
Pre-registration

It might finally hit 70 ℉ in Marin this week. Let's celebrate with a quite hilly ride. From Miller Creek we'll ride to Mt Tam via Las Gallinas, Fawn Drive, and BoFax Rd. We'll either go all the way to the summit or just to Rock Springs, depending on group interest. Then descend Pantoll to Stinson Beach for lunch. Return via Hwy 1 and Olema to Platform Bridge, Nicasio, and Lucas Valley. See the route on RideWithGPS.

Pre-registration is appreciated. We'll start when everyone who arrives by the meeting time is ready. If you arrive after the meeting time you may have to chase. You can probably catch us at the Fairfax police station (mile 5.5), where we will pause for water and restroom. There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch.

THU MAY 14 3/TM/26.6 Spruce to Space (repeats weekly) 
Leader: Joel Ager     (510) 418-6462
Leader: Steve Winter     (510) 551-5566    text
Leader: Abigail Cotton     (949) 929-3714    text
Leader: Kaela Lee     (503) 516-4734    text
Meet at 5:20 pm for a 5:30 pm start
Start Location: North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

THU MAY 14 5/0/17 Thirsty Thursday Mixty (repeats weekly) 
Leader: Mike Wood     (708) 539-9663    text
Leader: Drew U     (510) 290-0615    text
Meet at 5:30 pm for a 5:35 pm start
GPC Route: CCB Mixed Terrain Short
Start Location: Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

FRI MAY 15 1/T/34 Bay Trail / E-ville / Point Richmond 
Leader: Arleen Sakamoto     (415) 279-6248
Leader: Ken Karda   (510) 530-8389
Meet at 9:45 am for a 10:00 am start
Start Location: Brickyard Cove, Berkeley
Pre-registration

We will ride to the Emeryville marina, then North on the Bay Trail for a clockwise loop to the Red Oak Victory Ship, Miller-Knox Park, bypass the Ferry Point Tunnel, & lunch @ Little Louie's. There will be an option to ride thru the tunnel.

SAT MAY 16 3/T/40 Birthday Miles 🎂🚲 
Leader: Mary Ann Jawili     (661) 343-5737    text
Meet at 9:30 am for a 9:45 am start
Start Location: SF - Ferry Building Front
Pre-registration
UPDATE:
  • We are rolling at 9:45am. Please be on time. I will bring chocolate chip sourdough for us to enjoy before we roll.
  • If you are running late, text me +1-661-343-5737, and I can keep you posted on our location.
  • There is no lunch stop and no stop to buy food. Bring all the calories you need. We will have savory food, drinks, and dessert at the end.
  • Make sure you have a copy of the route. I will announce the next few regroups at each regroup.
  • Prep your bike for the ride, so we can minimize mechanicals. Check tire pressure and brakes.
  • Bring your good vibes and patience! Given the group size and urban route, we will probably go at a slow T pace.

[RWGPS route] Come help me celebrate my 40th birthday with a 40-mile road ride! It will likely be a solid T-pace ride, given my current fitness level and all the urban streets. We will have quick regroups to try to keep us together. Portapotty at the top of Hawk Hill (Mile 10), restrooms and snacks at Larkspur Landing (Mile 25). Note the ROLL time of 9:45am.

Optional cake, food, and drinks at my house El Cerrito's Castro Park, five blocks east of the Ohlone Greenway and a 10-minute ride from either El Cerrito BART stations. If you want to do cake only and no ride, RSVP anyway, and indicate "cake only" as your bike make/model in the RSVP form.

Please RSVP at by Friday, May 15 noon to help my planning.

SAT MAY 16 5/0/19 Individual Time Trial/GPC Pace Ride (repeats monthly) 
Leader: Marie Noel Appel     (415) 254-4469
Meet at 9:40 am for a 10:00 am start
GPC Route: Bears Loop
Start Location: Orinda - San Pablo Dam Rd and Bear Creek Rd
Mandatory pre-registration

If no riders have signed up by 7 a.m. the morning of the ITT/GPC Pace Ride, it will be cancelled. If there is at least one rider signed up, it will go forward and riders can register online up until 9:50 a.m.

Individual Time Trial
Come test your fitness level and get in a great workout by riding the Bears Loop as a time trial. In the ITT, each person rides at his/her own pace (no drafting) to see how fast the Bears Loop can be completed. It’s a great format for pushing yourself to see how fast you can ride the loop.

Pace Group Ride
Ride the Bears Loop at your normal pace to use it to determine your GPC pace (https://www.grizz.org/rides/ratings.php). Or use this ride to train at a particular pace for an upcoming event.

The first rider is off at 10:01 and a rider a minute after that. For the GPC Pace ride, a pace group can start together, or each rider can rider on their own as the ITT riders do. (Regardless of the format, each rider is timed individually.)

Rider finishing times are usually shared in the ride report email to the club. While it is nice to see what times folks ride, reporting of rider times is optional. Also, the ITT is open to both members and non-members; no need to join as in the past.

SUN MAY 17 2/T/45 TSR: Gentle CoCo Cty Hills 
Leader: Adele Madelo     (510) 773-0693    text
Meet at 9:45 am for a 10:00 am start
Start Location: Orinda BART NW corner of parking lot
Pre-registration

Resuming TSR with the gentle hills east of Orinda BART. Coffee at KavehG at around mile 22. Bathroom and water at Livorna. Falafel or a gyro at Petra Cafe in DT Orinda, if you'd like. I'm also open to Loard's ice cream.

Please see RWGPS route here.

We meet at 9:45 and roll at 10:00. (NB train gets in at 9:49; SB at 9:52.) Bathrooms and free parking available at station.

MON MAY 18 3!/T/16 Monday TI Lap (repeats weekly) 
Leader: Zachary Williams     (415) 218-3195    text
Leader: Tony Perez     (510) 334-9105    text
Leader: Steve Winter     (510) 551-5566    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

TUE MAY 19 5/B/32 GPC Tuesday Night Ride - Brisk Group (repeats weekly) 
Leader: Christopher Lee     (510) 773-0551
Leader: Eli Alexander-Tanner     (510) 593-9843    text
Leader: Max Walker     (925) 324-2256    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

TUE MAY 19 5/M/24,32 GPC Tuesday Evening Ride 
Leader: Steve Payne     (510) 995-6327    text
Meet at 5:30 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Steve Payne will lead the ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

WED MAY 20 3/T/38 Wed Ride - Deb's Diversion - Bear Valley to Drakes Beach 
Leader: Sandy Emerson     (650) 743-0524    text
Meet at 10:00 am for a 10:15 am start
GPC Route: Bear Valley to Drakes Beach
Start Location: Point Reyes Bear Valley Visitor Center
Pre-registration

Head for the cool Pt. Reyes coast on one of our favorite rides, from the Bear Valley Visitor Center to Drakes Beach. There are two tough hills - the climb out of Inverness to get into the park, and then the steep climb back up from the beach after lunch. Lunch is at Drakes Beach, where the visitor center has bathrooms and water. Bring your lunch, or stop to pick up lunch items at the deli in Inverness Park or at the deli in Inverness. The weather at Point Reyes is predicted to be in the 70's. Please pre-register!

WED MAY 20 3/T/21 Wednesday Mixed Terrain T Pace (repeats weekly) 
Leader: Rick Patterson     (510) 978-1786    text
Meet at 6:00 pm for a 6:10 pm start
Start Location: El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

THU MAY 21 4/TM,M/66 Duros West - Chimney Rock 
Leader: Mark Nienberg     (510) 812-9312    text
Meet at 9:30 am
Start Location: Nicasio
Pre-registration
UPDATE:

Traffic delays on the Richmond Bridge will delay our start to 9:45am.

Starting in Nicasio we'll ride to San Geronimo and then Sir Francis Drake to Olema and Bear Valley. Pick up lunch at the Inverness Park Market (mile 17) on the way and carry it out to the Historic Point Reyes Lifeboat Station at Chimney Rock. Order ahead if you like.

Arrive by the meeting time if you don't want to chase. You can probably catch us at Inverness Park.

See the route on RideWithGPS.

THU MAY 21 3/TM/26.6 Spruce to Space (repeats weekly) 
Leader: Anne Schonfield     (510) 851-4749    text
Leader: Joel Ager     (510) 418-6462
Leader: Steve Winter     (510) 551-5566    text
Leader: Abigail Cotton     (949) 929-3714    text
Leader: Kaela Lee     (503) 516-4734    text
Meet at 5:20 pm for a 5:30 pm start
Start Location: North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

THU MAY 21 5/0/17 Thirsty Thursday Mixty (repeats weekly) 
Leader: Mike Wood     (708) 539-9663    text
Leader: Drew U     (510) 290-0615    text
Meet at 5:30 pm for a 5:35 pm start
GPC Route: CCB Mixed Terrain Short
Start Location: Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

SAT MAY 23 4/TM/65 - 85 - 114 King Ridge Stewarts Pt Loop 
Leader: Arnim Polster     (415) 271-3440    text
Meet at 7:45 am for a 8:00 am start
Mandatory pre-registration

Still a great time of year to experience this scenic route through a remote area of Sonoma County.
Choice of:

  • 3 starting points
  • 3 different distances, and
  • 3 starting times depending on your start location.

Please be sure to preregister - if I'm not expecting anyone at a given meeting point, I will not wait there.

For the 65-mile version: start/end in Duncans Mills; meet at 9:45am and be ready to roll ca 10:00am
https://ridewithgps.com/routes/55118378

For the 85-mile version: start/end in Occidental; please arrive by 8:45am so you are ready to ride at 9:00am. The group leaving from my house will arrive in Occidental on our bikes ca. 8:55-9:00am.
https://ridewithgps.com/routes/55118325

For 114-mile route: start/end at my home near Cotati: 5523 Henning Road (short distance from Hwy 116, plenty of parking), meet @7:30, roll @7:45am.
https://ridewithgps.com/routes/55118311

Brief refueling in Cazadero. Longer stop at Fort Ross General Store.
Please pre-register, and let me know where you'll be starting from so I'll know to look for you at the starting points for the 2 shorter options.

MON MAY 25 3!/T/16 Monday TI Lap (repeats weekly) 
Leader: Zachary Williams     (415) 218-3195    text
Leader: Tony Perez     (510) 334-9105    text
Leader: Steve Winter     (510) 551-5566    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

TUE MAY 26 5/B/32 GPC Tuesday Night Ride - Brisk Group (repeats weekly) 
Leader: Christopher Lee     (510) 773-0551
Leader: Eli Alexander-Tanner     (510) 593-9843    text
Leader: Max Walker     (925) 324-2256    text
Meet at 5:25 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

TUE MAY 26 5/M/24,32 GPC Tuesday Evening Ride 
Leader: Steve Payne     (510) 995-6327    text
Meet at 5:30 pm for a 5:35 pm start
Start Location: Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Steve Payne will lead this ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

WED MAY 27 2/L/35 to 4/T/50 Wed Ride - Deb's Diversion (repeats weekly) 
Meet at 10:00 am for a 10:15 am start
This is a placeholder ride for planning only. The leader needs to update it with more information.

Miles and smiles, hills and thrills, lunches and lattes. This listing will be updated when the route and leader have been determined, usually by Monday evening. Meet at 10:00 am (usually) for this ride. Rain cancels. You can also join our web forum and check the forum archives for the current information.

WED MAY 27 3/T/21 Wednesday Mixed Terrain T Pace (repeats weekly) 
Leader: Rick Patterson     (510) 978-1786    text
Meet at 6:00 pm for a 6:10 pm start
Start Location: El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

THU MAY 28 3/TM,M/60-80 Duros West (repeats weekly) 
Leader: Mark Nienberg     (510) 812-9312    text
Meet at 9:30 am
Pre-registration
This is a placeholder ride for planning only. The leader needs to update it with more information.

This weekly ride often tours through West Marin, but sometimes travels to Napa, Sonoma, or Livermore, depending on the season. We have frequent regroups and usually stop for a real lunch, if it is available on the route. This listing will be updated when the route and leader have been determined, usually by Monday evening. Status updates for weather cancellations will also be posted on the schedule.

There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch. Faster riders should feel free to push on after lunch. Just tell the leader first.

THU MAY 28 3/TM/26.6 Spruce to Space (repeats weekly) 
Leader: Anne Schonfield     (510) 851-4749    text
Leader: Joel Ager     (510) 418-6462
Leader: Steve Winter     (510) 551-5566    text
Leader: Abigail Cotton     (949) 929-3714    text
Leader: Kaela Lee     (503) 516-4734    text
Meet at 5:20 pm for a 5:30 pm start
Start Location: North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

THU MAY 28 5/0/17 Thirsty Thursday Mixty (repeats weekly) 
Leader: Mike Wood     (708) 539-9663    text
Leader: Drew U     (510) 290-0615    text
Meet at 5:30 pm for a 5:35 pm start
GPC Route: CCB Mixed Terrain Short
Start Location: Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

SUN MAY 31 5!/T/68 Planet of the Apes (POTA) Mixed Terrain (BARTable) 
Leader: Rick Patterson     (510) 978-1786    text
Meet at 8:00 am
Start Location: MacArthur BART
Pre-registration

Join us on this fun and challenging "Planet of the Apes" Mixed Terrain route on the peninsula which starts at San Bruno BART around 9:00am. For those who will BART, we will meet at Mac Arthur BART at 8:00am to catch the 8:09 train. For those starting at San Bruno BART, we will meet here at the Tanforan Memorial around 9:00am. We will ascend Sneath Lane Trail through Portola Highlands Park to Sweeney Ridge. After rolling through a neighborhood we ascend Old San Pedro Mountain before descending the same trail/road into Pacifica via Montara and then onto the scenic trails along the ocean in Half Moon Bay.

We will stop for a quick lunch in Half Moon Bay before climbing Purisima Creek Trail through Purisima Creek Canyon, with its towering redwoods, rushing creek, and understory of ferns, berries, and wildflowers. It’s a dirt version of Tunitas Creek and is among the best trails in the Bay Area. This is an 8 mile climb with 1900’ of elevation. We will descend the glorious Kings Mountain Rd. to Cañada Rd. and back to BART.

SUN MAY 31 3/TM/62 Mt. Tam Clockwise from Richmond BART 
Leader: Kaela Lee     (503) 516-4734    text
Meet at 8:50 am for a 9:00 am start
Start Location: Richmond BART
Pre-registration

Come ride Mt. Tam with me!

Pace will be a friendly TM. Experienced T riders are very welcome.

The group will depart from Richmond BART at 9:00am and cross the RSR Bridge to Mill Valley. We will climb up Mt. Tam via Panoramic Highway and ride out-and-back to summit. Then, we’ll descend down the Seven Sisters and the rolling hills by the Mt. Tamalpais Watershed to Fairfax. Return to Richmond BART via RSR bridge.

Our lunch stop will be at Good Earth Natural Foods in Fairfax, which is about 5 hours into the ride. Please bring lots of snacks for the climb! We will have rest stops to eat and refill water bottles in Mill Valley and during the climb at Bootjack Trailhead.

Route: https://ridewithgps.com/routes/51778070

Leader: Corwin Zechar
   mobile    text
Leader: Charley Donovan
   mobile    text
Start Location:
Sports Basement, Berkeley
Pre-registration

This is a warm-up ride for the Grizzly Peak Century - the day before the century. There will be a post ride party hosted by our friends at Sports Basement Berkeley from 3 - 5:30pm. Century volunteers are also welcome at the party. And... There will be a food truck outside.

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This tenth ride in the 2026 Century Prep Series leaves from Sports Bsement Berkeley. Climb Tunnel Road to Grizzly Peak Boulevard, turn left and continue to Spruce. Turn left again and descend back to Sports Basement via Spruce, Virginia and Milvia. Members and nonmembers can all pre-register using the link above to save us time at the start.

RideWithGPS route

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

Note: If you are registered for the century, you can pick up your t-shirt at Sports Basement between 3 and 5:30 pm.

Start Location:
St. Mary's College

Information and Registration on our century website.

Leader: Zachary Williams
   mobile    text
Leader: Tony Perez
   mobile    text
Leader: Steve Winter
   mobile    text
Start Location:
Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

Leader: Christopher Lee
   phone
Leader: Eli Alexander-Tanner
   mobile    text
Leader: Max Walker
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

Leader: Mark Abrahams
   phone
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Tue 10:45am. Paul Schmidt will lead the ride today. Check back later today for any possible weather updates.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Leader: Nick Umemoto

Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Ride canceled due to no pre-registered riders. Hope to see you on another ride! Thanks

Join us for a friendly TM paced paved ride. We meet at the plaza near the water fountain by Spruce and Grizzly Peak. This is an out and back to Chabot Space and Science Center. We'll head out along Grizzly Peak Blvd or Wildcat and up South Park. Then, take Skyline to the Science Center driveway where we'll climb the road to Chabot Space and Science Center. Brief regroups are at the top of South Park, Grizzly Peak at Skyline, and Chabot Science Center. Please carry enough food and water for the entire ride. Please pre-register by 3:30PM day of ride. Rain, bad AQI, or no riders pre-registering might cancel the ride. E-bikes are welcome on this ride.

The pace is TM (approx. 16mph solo effort on flats, up to 3w/kg climbing)

https://ridewithgps.com/routes/45778398

Leader: Jaz Zaitlin
   mobile    text
Leader: Debbie Miskell
   mobile    text
GPC Route:
Nicasio to Marshall
Start Location:
Nicasio
Pre-registration

Our standard Marshall Wall CCW loop from Nicasio. Ride past the Marin Cheese Factory and over the Marshall Wall. Ride the rollers down Highway 1. Return with an optional lunch/snack stop at the Bovine Bakery in Pt. Reyes Station.

The Marshall store is open on Wednesday but only for "shuck your own", not a full menu. Some of us will stop there and eat our own sandwiches. Some will continue on to Pt. Reyes Station for lunch.

Leader: Rick Patterson
   mobile    text
Start Location:
El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

Leader: Mark Nienberg
   mobile    text
GPC Route:
Loop around Mt Tam
Start Location:
Piper Park
Pre-registration

From Piper Park (water and rest rooms), we ride the back roads to Fairfax. Then over White Hill to Woodacre, Sam P Taylor, Platform Bridge, and Pt Reyes Station (mile 25) for snacks. Then south to Stinson Beach for lunch (mile 42). Continue south on Hwy 1 to the climb through Muir Woods and the descent into Mill Valley. Final climb over Camino Alto and return to Piper Park via the bike path.

If there is an event at Piper Park and you can't find a spot, park around the corner on Larkspur Plaza Drive. It's uncommon, but it has happened.

This ride sometimes has a faster group (more like M pace) and a regular TM group. The groups come back together at frequent regroups and lunch. Arrive by the meeting time if you don't want to chase.

Leader: Anne Schonfield
   mobile    text
Leader: Joel Ager
   phone
Leader: Steve Winter
   mobile    text
Leader: Abigail Cotton
   mobile    text
Start Location:
North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Leader: Mike Wood
   mobile    text
Leader: Drew U
   mobile    text
GPC Route:
CCB Mixed Terrain Short
Start Location:
Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Leader: Alberto Perez
   mobile    text
GPC Route:
ASSR - T - Martinez
Start Location:
Orinda BART NW corner of parking lot
Pre-registration

*Please note different start time.*

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a TM-paced ride! See more information about this ride on our website.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

Leader: Ian Cha
   mobile    text
Leader: Siu Mak
   mobile    text
GPC Route:
ASSR - TM (short) - Classic Andante
Start Location:
Orinda BART NW corner of parking lot
Pre-registration

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a T-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website. This is a NO DROP ride.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

Leader: Mitch Cohen

Leader: Arash Farzam
   mobile    text
GPC Route:
ASSR - LT - Classic Larghetto
Start Location:
Orinda BART NW corner of parking lot
Pre-registration
UPDATE:

Please note updated start time! Meet at 10am!

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for an LT-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website. This is a NO DROP ride.

While everyone is invited to ride the ASSR, only Century volunteers are invited to the Worker’s party at Orinda Oaks Park. If you were not a volunteer, please end your ride at Orinda Bart. If you were a volunteer, please join us at the Worker’s party by continuing just a few miles down the road to Orinda Oaks park after the ride.

Leader: Richard Amarelo

Start Location:
Orinda Oaks Park

Did you volunteer for the Grizzly Peak Century? Come celebrate the completion of a successful event with your fellow Grizzlies at our after party! Please see previous listings for ride options before the party. Even if you choose not to ride, come and hang out for pizza, cake, and good cheer! Please RSVP here as soon as possible:

https://forms.gle/PRevwdQhW3J7L3Ru7

We are looking forward to celebrating with you!

Leader: Zachary Williams
   mobile    text
Leader: Tony Perez
   mobile    text
Leader: Steve Winter
   mobile    text
Start Location:
Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

Leader: Christopher Lee
   phone
Leader: Eli Alexander-Tanner
   mobile    text
Leader: Max Walker
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

Leader: Paul Schmidt
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Paul Schmidt will lead the ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Leader: Philippe Henri
   mobile    text
GPC Route:
Carquinez Loop Clockwise via Bay Trail
Start Location:
Pinole Valley Park
Pre-registration

Our standard clockwise route from Pinole Valley Park along the Bay Trail and the George Miller Trail to lunch in Martinez in the Plaza next to Starbucks on Main St. Return via Pig Farm Hill. Bring lunch or buy in Martinez.

Leader: Rick Patterson
   mobile    text
Start Location:
El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

Join the club's virtual monthly business meeting at 7:00 pm. Optional social time from 6:45 pm to 7:00 pm. Check your email for an announcement with the agenda and details of how to join the meeting.

Leader: Mark Nienberg
   mobile    text
Start Location:
San Rafael - Marinwood Community Center
Pre-registration

It might finally hit 70 ℉ in Marin this week. Let's celebrate with a quite hilly ride. From Miller Creek we'll ride to Mt Tam via Las Gallinas, Fawn Drive, and BoFax Rd. We'll either go all the way to the summit or just to Rock Springs, depending on group interest. Then descend Pantoll to Stinson Beach for lunch. Return via Hwy 1 and Olema to Platform Bridge, Nicasio, and Lucas Valley. See the route on RideWithGPS.

Pre-registration is appreciated. We'll start when everyone who arrives by the meeting time is ready. If you arrive after the meeting time you may have to chase. You can probably catch us at the Fairfax police station (mile 5.5), where we will pause for water and restroom. There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch.

Leader: Joel Ager
   phone
Leader: Steve Winter
   mobile    text
Leader: Abigail Cotton
   mobile    text
Leader: Kaela Lee
   mobile    text
Start Location:
North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Leader: Mike Wood
   mobile    text
Leader: Drew U
   mobile    text
GPC Route:
CCB Mixed Terrain Short
Start Location:
Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Leader: Arleen Sakamoto
   phone
Leader: Ken Karda
   phone
Start Location:
Brickyard Cove, Berkeley
Pre-registration

We will ride to the Emeryville marina, then North on the Bay Trail for a clockwise loop to the Red Oak Victory Ship, Miller-Knox Park, bypass the Ferry Point Tunnel, & lunch @ Little Louie's. There will be an option to ride thru the tunnel.

Leader: Mary Ann Jawili
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Start Location:
SF - Ferry Building Front
Pre-registration
UPDATE:
  • We are rolling at 9:45am. Please be on time. I will bring chocolate chip sourdough for us to enjoy before we roll.
  • If you are running late, text me +1-661-343-5737, and I can keep you posted on our location.
  • There is no lunch stop and no stop to buy food. Bring all the calories you need. We will have savory food, drinks, and dessert at the end.
  • Make sure you have a copy of the route. I will announce the next few regroups at each regroup.
  • Prep your bike for the ride, so we can minimize mechanicals. Check tire pressure and brakes.
  • Bring your good vibes and patience! Given the group size and urban route, we will probably go at a slow T pace.

[RWGPS route] Come help me celebrate my 40th birthday with a 40-mile road ride! It will likely be a solid T-pace ride, given my current fitness level and all the urban streets. We will have quick regroups to try to keep us together. Portapotty at the top of Hawk Hill (Mile 10), restrooms and snacks at Larkspur Landing (Mile 25). Note the ROLL time of 9:45am.

Optional cake, food, and drinks at my house El Cerrito's Castro Park, five blocks east of the Ohlone Greenway and a 10-minute ride from either El Cerrito BART stations. If you want to do cake only and no ride, RSVP anyway, and indicate "cake only" as your bike make/model in the RSVP form.

Please RSVP at by Friday, May 15 noon to help my planning.

Leader: Marie Noel Appel
   phone
GPC Route:
Bears Loop
Start Location:
Orinda - San Pablo Dam Rd and Bear Creek Rd
Mandatory pre-registration

If no riders have signed up by 7 a.m. the morning of the ITT/GPC Pace Ride, it will be cancelled. If there is at least one rider signed up, it will go forward and riders can register online up until 9:50 a.m.

Individual Time Trial
Come test your fitness level and get in a great workout by riding the Bears Loop as a time trial. In the ITT, each person rides at his/her own pace (no drafting) to see how fast the Bears Loop can be completed. It’s a great format for pushing yourself to see how fast you can ride the loop.

Pace Group Ride
Ride the Bears Loop at your normal pace to use it to determine your GPC pace (https://www.grizz.org/rides/ratings.php). Or use this ride to train at a particular pace for an upcoming event.

The first rider is off at 10:01 and a rider a minute after that. For the GPC Pace ride, a pace group can start together, or each rider can rider on their own as the ITT riders do. (Regardless of the format, each rider is timed individually.)

Rider finishing times are usually shared in the ride report email to the club. While it is nice to see what times folks ride, reporting of rider times is optional. Also, the ITT is open to both members and non-members; no need to join as in the past.

Leader: Adele Madelo
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Start Location:
Orinda BART NW corner of parking lot
Pre-registration

Resuming TSR with the gentle hills east of Orinda BART. Coffee at KavehG at around mile 22. Bathroom and water at Livorna. Falafel or a gyro at Petra Cafe in DT Orinda, if you'd like. I'm also open to Loard's ice cream.

Please see RWGPS route here.

We meet at 9:45 and roll at 10:00. (NB train gets in at 9:49; SB at 9:52.) Bathrooms and free parking available at station.

Leader: Zachary Williams
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Leader: Tony Perez
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Leader: Steve Winter
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Start Location:
Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

Leader: Christopher Lee
   phone
Leader: Eli Alexander-Tanner
   mobile    text
Leader: Max Walker
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Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

Leader: Steve Payne
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Steve Payne will lead the ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Leader: Sandy Emerson
   mobile    text
GPC Route:
Bear Valley to Drakes Beach
Start Location:
Point Reyes Bear Valley Visitor Center
Pre-registration

Head for the cool Pt. Reyes coast on one of our favorite rides, from the Bear Valley Visitor Center to Drakes Beach. There are two tough hills - the climb out of Inverness to get into the park, and then the steep climb back up from the beach after lunch. Lunch is at Drakes Beach, where the visitor center has bathrooms and water. Bring your lunch, or stop to pick up lunch items at the deli in Inverness Park or at the deli in Inverness. The weather at Point Reyes is predicted to be in the 70's. Please pre-register!

Leader: Rick Patterson
   mobile    text
Start Location:
El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

Leader: Mark Nienberg
   mobile    text
Start Location:
Nicasio
Pre-registration
UPDATE:

Traffic delays on the Richmond Bridge will delay our start to 9:45am.

Starting in Nicasio we'll ride to San Geronimo and then Sir Francis Drake to Olema and Bear Valley. Pick up lunch at the Inverness Park Market (mile 17) on the way and carry it out to the Historic Point Reyes Lifeboat Station at Chimney Rock. Order ahead if you like.

Arrive by the meeting time if you don't want to chase. You can probably catch us at Inverness Park.

See the route on RideWithGPS.

Leader: Anne Schonfield
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Leader: Joel Ager
   phone
Leader: Steve Winter
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Leader: Abigail Cotton
   mobile    text
Leader: Kaela Lee
   mobile    text
Start Location:
North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Leader: Mike Wood
   mobile    text
Leader: Drew U
   mobile    text
GPC Route:
CCB Mixed Terrain Short
Start Location:
Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Leader: Arnim Polster
   mobile    text
Mandatory pre-registration

Still a great time of year to experience this scenic route through a remote area of Sonoma County.
Choice of:

  • 3 starting points
  • 3 different distances, and
  • 3 starting times depending on your start location.

Please be sure to preregister - if I'm not expecting anyone at a given meeting point, I will not wait there.

For the 65-mile version: start/end in Duncans Mills; meet at 9:45am and be ready to roll ca 10:00am
https://ridewithgps.com/routes/55118378

For the 85-mile version: start/end in Occidental; please arrive by 8:45am so you are ready to ride at 9:00am. The group leaving from my house will arrive in Occidental on our bikes ca. 8:55-9:00am.
https://ridewithgps.com/routes/55118325

For 114-mile route: start/end at my home near Cotati: 5523 Henning Road (short distance from Hwy 116, plenty of parking), meet @7:30, roll @7:45am.
https://ridewithgps.com/routes/55118311

Brief refueling in Cazadero. Longer stop at Fort Ross General Store.
Please pre-register, and let me know where you'll be starting from so I'll know to look for you at the starting points for the 2 shorter options.

Leader: Zachary Williams
   mobile    text
Leader: Tony Perez
   mobile    text
Leader: Steve Winter
   mobile    text
Start Location:
Emeryville - Opposite IKEA
Pre-registration

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

Leader: Christopher Lee
   phone
Leader: Eli Alexander-Tanner
   mobile    text
Leader: Max Walker
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

Leader: Steve Payne
   mobile    text
Start Location:
Berkeley - Spruce & Grizzly Peak Blvd - Plaza
Pre-registration
UPDATE:

Steve Payne will lead this ride this week. --Mark

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

This is a placeholder ride for planning only. The leader needs to update it with more information.

Miles and smiles, hills and thrills, lunches and lattes. This listing will be updated when the route and leader have been determined, usually by Monday evening. Meet at 10:00 am (usually) for this ride. Rain cancels. You can also join our web forum and check the forum archives for the current information.

Leader: Rick Patterson
   mobile    text
Start Location:
El Cerrito Plaza BART
Pre-registration

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

Leader: Mark Nienberg
   mobile    text
Pre-registration
This is a placeholder ride for planning only. The leader needs to update it with more information.

This weekly ride often tours through West Marin, but sometimes travels to Napa, Sonoma, or Livermore, depending on the season. We have frequent regroups and usually stop for a real lunch, if it is available on the route. This listing will be updated when the route and leader have been determined, usually by Monday evening. Status updates for weather cancellations will also be posted on the schedule.

There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch. Faster riders should feel free to push on after lunch. Just tell the leader first.

Leader: Anne Schonfield
   mobile    text
Leader: Joel Ager
   phone
Leader: Steve Winter
   mobile    text
Leader: Abigail Cotton
   mobile    text
Leader: Kaela Lee
   mobile    text
Start Location:
North Berkeley BART
Pre-registration

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Leader: Mike Wood
   mobile    text
Leader: Drew U
   mobile    text
GPC Route:
CCB Mixed Terrain Short
Start Location:
Canyon Club Brewery
Pre-registration

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Leader: Rick Patterson
   mobile    text
Start Location:
MacArthur BART
Pre-registration

Join us on this fun and challenging "Planet of the Apes" Mixed Terrain route on the peninsula which starts at San Bruno BART around 9:00am. For those who will BART, we will meet at Mac Arthur BART at 8:00am to catch the 8:09 train. For those starting at San Bruno BART, we will meet here at the Tanforan Memorial around 9:00am. We will ascend Sneath Lane Trail through Portola Highlands Park to Sweeney Ridge. After rolling through a neighborhood we ascend Old San Pedro Mountain before descending the same trail/road into Pacifica via Montara and then onto the scenic trails along the ocean in Half Moon Bay.

We will stop for a quick lunch in Half Moon Bay before climbing Purisima Creek Trail through Purisima Creek Canyon, with its towering redwoods, rushing creek, and understory of ferns, berries, and wildflowers. It’s a dirt version of Tunitas Creek and is among the best trails in the Bay Area. This is an 8 mile climb with 1900’ of elevation. We will descend the glorious Kings Mountain Rd. to Cañada Rd. and back to BART.

Leader: Kaela Lee
   mobile    text
Start Location:
Richmond BART
Pre-registration

Come ride Mt. Tam with me!

Pace will be a friendly TM. Experienced T riders are very welcome.

The group will depart from Richmond BART at 9:00am and cross the RSR Bridge to Mill Valley. We will climb up Mt. Tam via Panoramic Highway and ride out-and-back to summit. Then, we’ll descend down the Seven Sisters and the rolling hills by the Mt. Tamalpais Watershed to Fairfax. Return to Richmond BART via RSR bridge.

Our lunch stop will be at Good Earth Natural Foods in Fairfax, which is about 5 hours into the ride. Please bring lots of snacks for the climb! We will have rest stops to eat and refill water bottles in Mill Valley and during the climb at Bootjack Trailhead.

Route: https://ridewithgps.com/routes/51778070

May 2026 Ride Statistics
Weekday Weekend Total
34 12 46